1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1f092c1e39769c73da45b22df90a45bc3583ea4f192995e2dd359ace42f7cb. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba187729-4c81-4be5-bdca-02d81a20ee8d.json and https://artists.proofprofile.net/proofs/artist/ba187729-4c81-4be5-bdca-02d81a20ee8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Complete Horace Parlan Blue Note Sessions (Remastered)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3900037a601c16c9102316af6a175bb5cb624f2c2594a0b2b714382d874060c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBN20001029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ab8a8253aed2bd8285cfc8a5f0cd785698da63099d245980af6c62b7df3f04. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBN20001043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5877fb6e8a5d267ac097d704b7282205e96b385ef8779bfd9a597c2390b78e8b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBN20001044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa7c6f1a3fd2cb80f844653f2efd20daa6c022eb67d43f7ca5cd623c16d1807. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBN20001051.
Blues Montage, Pt. 1: Opening Blues/Blues Montage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b183a40699990c5af3bd1e727dd3cba5a893ce3b04b616050c1ddadb88a149. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72012604.
Blues Montage, Pt. 2: Commercial Theatre/Morning After
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a64768d9697683e272f145a801baf4d621e61faa0f9288fa82f314cff81cb38. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72012605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50bd4bdbbae962d74c8becb645e20a9d0328a57fc8b63385e0190b1ea3a1bf7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72012625.
Consider Me: The Stranger/Midnight Stroll/ Backstage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb176a13775c0054be392e9ba41b6ee2a754d7925528ed1cb94694c2a534c541. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72012626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c21e250150497616e847bee2f0b44ddb37597ea15263c857db9a1c2b22c47a1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72012627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e9b7d8b116d465a10ecae852400515d077f509e2f192ff53ef83a6d97b6d50. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72012629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa307b4f2672970e5a39e48696a34c39de3adbab4909eb044be0b66f520325685. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72012630.